Gaming monitors typically fall within the 24 to 34-inch range, so when something like the Acer Predator X39 comes along—a 39-inch, curved, ultrawide OLED—it's bound to grab attention. Bigger is often better, but once you exceed 34 inches, it can start to feel overwhelming for most desktop setups. Fortunately, the X39 manages to sidestep the need for a super-wide 32:9 aspect ratio while still offering a significantly larger display than your average 21:9 ultrawide.
The sheer size of the X39 demands a good portion of your desk, occupying roughly a meter of width. Thankfully, the 800R curve helps to offset its scale. While not as extreme as the curve on Samsung's Odyssey Neo G8, it's sufficient to reduce head movement and eye strain. That said, at 39 inches, there's only so much a curve can do. Playing fast-paced shooters like Marvel Rivals may still feel like a workout for your neck.
Straight out of the box, the Predator X39 is a head-turner. Its robust aluminum frame oozes durability and blends seamlessly with its sleek, minimalist aesthetic. It's refreshingly understated, with no unnecessary RGB lighting—just a professional black and gray design that could easily fit in a corporate office.
The massive panel sits on a forked-leg stand that supports height, tilt, and swivel adjustments, although its large footprint may pose a challenge for users with smaller desks. Surprisingly, Acer doesn't include meaningful cable management solutions, a notable oversight for a monitor at this price. However, there is a threading mount for attaching accessories like cameras or lights, which is a nice touch.
Screen size: 39-inch
Resolution: 3440 x 1440
Brightness: 400 nits max HDR
Color coverage: 99% DCI-P3
Response time: 0.03 ms
Refresh rate: 240 Hz
HDR: DisplayHDR 400 True Black
Features: LG WOLED 3rd Gen panel, Adaptive Sync, 2x DisplayPort 1.4, 2x HDMI 2.1, 1x USB-C with 90W PD, 1x USB-C, 1x USB-B, 3x USB-A Auto KVM switch
Price: $1,200
Connectivity on the Predator X39 is
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